Holy cow! I was big into the demoscene as a kid - they consumed most of my hours spent on the C64... but WOW, that was an amazing demo: not only implementing some crazy-new tricks, but also aesthetically beautiful! Now I need to go back and watch all the other gems I've missed over the last 25 years.
https://www.youtube.com/watch?v=XcAUlEkU05A